895032 - Do not initialize addon-manager related components on startup if no addons are installed

Status: RESOLVED INACTIVE

(Firefox for Android Graveyard :: Add-on Manager, defect)

Description

[(dormant account)]

Bug 887824 shows that we spend a fair bit of time in addon manager stuff, we should skip it.

Comment 1

[:Irving Reid (No longer working on Firefox)]

https://blog.mozilla.org/addons/2011/06/21/firefox-4-add-on-users/ says 85% of Firefox 4 desktop users have an add-on. I'll look into getting updated numbers for FF and separate info for Android.

Comment 2

[:Margaret Leibovic]

Irving, I remember you publishing a blog post about this recently, but I can't find the link.

I think the conclusion was that not many Firefox for Android users have add-ons installed, so this bug could be a good perf win for us. Do you agree?

Comment 3

[:Irving Reid (No longer working on Firefox)]

You're probably thinking of http://www.controlledflight.ca/2014/06/02/how-many-firefox-extensions-do-people-use/

The short answer is yes, we could refactor the Addon Manager and/or XPI Provider to load a lot less code at start up time. We still need to load a bit, to tell whether we need to load the rest. Exactly how much of a start up win we get depends on how much code we can separate out; I'll need to talk to Unfocused and maybe Mossop to work that out.

There's also bug 1058899 that affects Fennec profiles that *do* have add-ons installed...